‘Candidatus Desulfonatronobulbus propionicus’: a first haloalkaliphilic member of the order Syntrophobacterales from soda lakes

Propionate can be directly oxidized anaerobically with sulfate as e-acceptor at haloalkaline conditions either incompletely to acetate (an example is Desulfobulbus alkaliphilus), or completely (for example by the members of genus Desulfonatronobacter). An enrichment with propionate at methanogenic conditions (without sulfate) inoculated with...